phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('4923c34ed805a4c5dfaf60e4f60e58fa', -1, 1713536892, 1713536892, '030e8e73', 5, 0, 0)

Line : 187
File : sessions.php